This Marlin manufactured straight slot rear takedown screw is for the model 60 semi-auto rimfire rifle and is in very good condition with light wear. (file photo)
Note: Model 60 rimfire rifles with the following years of manufacture and serial numbers have been observed with this part:
1994: 06270593
1995: 05175977
2000: 00223564
2002: 98462213 & 98475458